Heater.



F. R. BUTTERS.

HEATER.

APPLICATION HLED MAR. 30. 1915. RENEWED MAY 451917. %,%-h Patented. July 24,1917.

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BUTTERS, 0F SYRACUSE, NEW YORK, ASSIG-NOR T0 SYRACUSE HEATER COMPANY, OF ADAMS, NEW YORK, A CORPORATION OF NEW YORK.

HEATER.

Application filed March 30, 1915, Serial No. 18,176. Renewed May 4, 1917.

To all whom it may concern:

Be it known that I, FREDRICK R. Bnr'rnns, a citizen of the United States, and a resident of Syracuse, in the county of Onondaga in the State of New York, have invented new and useful Improvements in Heaters, of which the following, taken in connection with the accompanying drawings, is a full, clear, and eXact description.

This invention relates to certain. improvements in heaters, such as furnaces for house heating purposes, and refers more particu larly to means for supplying atmospheric air to the combustion chamber for consuming the gas-laden products of combustion, and thereby increasing the eiiiciency and fuel economy of the heater.

The main object is to provide simple means for supplying a continuous current of highly heated atmospheric air directly to and uniformly over and upon the surface of the fuel so as to more effectively consume the gaseous and smoke products of combustion, and thereby obtain a greater heat efficiency from a given quantity of fuel.

Another object is to cause the inflowing atmospheric air to travel in tortuous paths in and around the fire pot so that it may be distributed over the surface of the fuel in a highly heated condition to not only accelcrate combustion of the gases and fuel, but also to consume the smoke products from the surface of the fuel.

Other objects and uses will be brought out in the following description.

lln the drawing Figure 1 is a vertical sectional view partly in elevation of a furnace, showing my improved means for feeding the heated air to the combustion chamber.

Fig. 2 is a perspective view, partly in section, of the detached air ring forming a part of the combustion chamber and the inlet and outlet air conduits leading thereto and therefrom.

Fig. 3 is a perspective view of a portion of the heating drum surrounding the combustion chamber, showing the perforations through which the air is delivered into said combustion chamber.

The heater may be of any construction provided with a fire pot -1- having a combustion chamber 2, a fuel nlet -'3- Specification of Letters Patent.

Patented July 24, fWW.

Serial No. 166,493.

and a smoke outlet 4, the furnace shown being provided with an ash box 5-, an air chamber 6 surrounding the fire pot 1- and drum 2- and communicating at the top with a delivery chamber 7- having outlets 8- for receiving pipes which may extend to different parts of the building for supplying heated air thereto.

The main feature of my invention, however, consists of a hollow ring 9 surrounding and forming a section of the fire box l and in providing the interior of said ring with baffle plates 10 and -l1 projecting from opposite walls (preferably from the bot-tom and top) part way across the intervening space and in staggered relation uniform distances apart so as to cause the inflowing air to travel in tortuous paths therethrough.

This ring is provided in its front side with an air inlet pipe 12- leading radially through the front side of the furnace casing or jacket l3 below the fuel inlet 3 to permit the entrance of atmospheric air therethrough and into the hollow ring 9.

Leading from the rear end of this ring is an outlet pipe l4. which extends upwardly to a point just above the upper end of the fire pot where it is provided with an enlarged hollow head or distributing chamber l5 surrounding a perforated portion 16 of the heating drum as 2-,' the hollow head or distributing chamber -15- being secured by bolts or rivets to the periphery of said shell around the margin of the apertured portion 16- so as to form an airtight joint therewith.

The fire pot -1 is preferably made in annular sections arranged end to end of which the air ring 9 constitutes the intermediate section so that the inner wall of the ring is in direct contact with the fuel, thereby causing the air traveling through the ring -9- to be heated to a high degree, in which condition it is delivered to the combustion chamber directly over and upon the fuel, the inlet pipe l2 and outlet pipe 1 l being preferably made separate from the ring to enable the latter to be more conveniently assembled as a member of the fire pot when the parts of the heater are being set up, the front and rear portions of the ring -9- being provided with hollow Gopies of this patent may be obtained for of perforated, a pipe leading from the air inlet to the atmosphere, and a separate pipe leading from the hot air outlet and covering the perforated area of the drum to conduct 15 the heated air into the interior thereof.

a In Witness whereof I have hereunto set my hand this 6th day of March, 1915.

FREDRICK R. BUTTERS.

"Witnesses p H. E. CHASE, ALIOEM. CANNON.

five cents each, by addressing the fflommissioner of Eatents,

Washington, D. IE. 

